Holly Hill police investigated the threat, while students were moved to an off-campus location.

However, parents are outraged with the way the district handled the threat. Parents said they were never notified the incident was occurring.

"I understand that they can't call from the school because they're evacuating but there should have been some way to notify us this was going on," said parent Jessica Ogden. "Everybody else found out around, but the parents didn't know almost an hour afterwards we got a call."

Parents said they had to wait in line for two hours after the situation to be able to take their children home.

School officials said they will investigate how the incident was handled.

The 15-year-old who made the threat was taken in for a mental evaluation, according to officials.